If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity_________________?
(A) Is trebled
(B) Remains unchanged
(C) Decreases by a factor of 3
(D) Decreases by a factor of 1/3
Pressure required to increase the density of water by about 1% is ____________________ atmosphere?
(A) 10
(B) 50
(C) 200
(D) 1000
The starting of a car takes time in winter, because the__________________?
(A) Octane number of fuel is decreased
(B) Fuel supply for ignition is not sufficient
(C) Vaporisation of the fuel is decreased
(D) Pour point of fuel decreases
Reduction in the grain size reduces the _________________ of the material?
(A) Fatigue resistance
(B) Tensile strength
(C) Creep resistance
(D) All A,
Lead is poured into the joints between two ___________________ pipes?
(A) Cast iron
(B) Steel
(C) Concrete
(D) Plastic
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?
(A) Parabolic
(B) Hyperbolic
(C) Straight line
(D) None of these
Out of the following, the ________________ pipe has the least corrosion resistance?
(A) Mild steel
(B) Copper
(C) Cast iron
(D) Wrought iron
An alloy of Fe – 0.4 % C is__________________?
(A) Cast iron
(B) Hypo-eutectoid steel
(C) Hyper-eutectoid steel
(D) Eutectoid steel
Thermit welding uses the following energy source ?
(A) Electrical energy
(B) Chemical energy
(C) Energy of high velocity electrons
(D) Heat generated by friction
Resistance of an electrical conductor is proportional to its (where, l = length and A = crosssectional area of the conductor)________________?
(A) A
(B) l
(C) A2
(D) Both